1 /*
2 * ng_bt3c_pccard.c
3 */
4
5 /*-
6 * Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com>
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 *
30 * $Id: ng_bt3c_pccard.c,v 1.5 2003/04/01 18:15:21 max Exp $
31 * $FreeBSD$
32 *
33 * XXX XXX XX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX
34 *
35 * Based on information obrained from: Jose Orlando Pereira <jop@di.uminho.pt>
36 * and disassembled w2k driver.
37 *
38 * XXX XXX XX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX
39 *
40 */
41
42 #include <sys/param.h>
43 #include <sys/systm.h>
44
45 #include <sys/bus.h>
46 #include <machine/bus.h>
47
48 #include <sys/conf.h>
49 #include <sys/endian.h>
50 #include <sys/interrupt.h>
51 #include <sys/kernel.h>
52 #include <sys/mbuf.h>
53 #include <sys/module.h>
54
55 #include <machine/resource.h>
56 #include <sys/rman.h>
57
58 #include <sys/socket.h>
59 #include <net/if.h>
60 #include <net/if_var.h>
61
62 #include <dev/pccard/pccardreg.h>
63 #include <dev/pccard/pccardvar.h>
64 #include "pccarddevs.h"
65
66 #include <netgraph/ng_message.h>
67 #include <netgraph/netgraph.h>
68 #include <netgraph/ng_parse.h>
69 #include <netgraph/bluetooth/include/ng_bluetooth.h>
70 #include <netgraph/bluetooth/include/ng_hci.h>
71 #include <netgraph/bluetooth/include/ng_bt3c.h>
72 #include <netgraph/bluetooth/drivers/bt3c/ng_bt3c_var.h>
73
74 /* Netgraph methods */
75 static ng_constructor_t ng_bt3c_constructor;
76 static ng_shutdown_t ng_bt3c_shutdown;
77 static ng_newhook_t ng_bt3c_newhook;
78 static ng_connect_t ng_bt3c_connect;
79 static ng_disconnect_t ng_bt3c_disconnect;
80 static ng_rcvmsg_t ng_bt3c_rcvmsg;
81 static ng_rcvdata_t ng_bt3c_rcvdata;
82
83 /* PCMCIA driver methods */
84 static int bt3c_pccard_probe (device_t);
85 static int bt3c_pccard_attach (device_t);
86 static int bt3c_pccard_detach (device_t);
87
88 static void bt3c_intr (void *);
89 static void bt3c_receive (bt3c_softc_p);
90
91 static void bt3c_swi_intr (void *);
92 static void bt3c_forward (node_p, hook_p, void *, int);
93 static void bt3c_send (node_p, hook_p, void *, int);
94
95 static void bt3c_download_firmware (bt3c_softc_p, char const *, int);
96
97 #define bt3c_set_address(sc, address) \
98 do { \
99 bus_space_write_1((sc)->iot, (sc)->ioh, BT3C_ADDR_L, ((address) & 0xff)); \
100 bus_space_write_1((sc)->iot, (sc)->ioh, BT3C_ADDR_H, (((address) >> 8) & 0xff)); \
101 } while (0)
102
103 #define bt3c_read_data(sc, data) \
104 do { \
105 (data) = bus_space_read_1((sc)->iot, (sc)->ioh, BT3C_DATA_L); \
106 (data) |= ((bus_space_read_1((sc)->iot, (sc)->ioh, BT3C_DATA_H) & 0xff) << 8); \
107 } while (0)
108
109 #define bt3c_write_data(sc, data) \
110 do { \
111 bus_space_write_1((sc)->iot, (sc)->ioh, BT3C_DATA_L, ((data) & 0xff)); \
112 bus_space_write_1((sc)->iot, (sc)->ioh, BT3C_DATA_H, (((data) >> 8) & 0xff)); \
113 } while (0)
114
115 #define bt3c_read_control(sc, data) \
116 do { \
117 (data) = bus_space_read_1((sc)->iot, (sc)->ioh, BT3C_CONTROL); \
118 } while (0)
119
120 #define bt3c_write_control(sc, data) \
121 do { \
122 bus_space_write_1((sc)->iot, (sc)->ioh, BT3C_CONTROL, (data)); \
123 } while (0)
124
125 #define bt3c_read(sc, address, data) \
126 do { \
127 bt3c_set_address((sc), (address)); \
128 bt3c_read_data((sc), (data)); \
129 } while(0)
130
131 #define bt3c_write(sc, address, data) \
132 do { \
133 bt3c_set_address((sc), (address)); \
134 bt3c_write_data((sc), (data)); \
135 } while(0)
136
137 static MALLOC_DEFINE(M_BT3C, "bt3c", "bt3c data structures");
138
139 /****************************************************************************
140 ****************************************************************************
141 ** Netgraph specific
142 ****************************************************************************
143 ****************************************************************************/
144
145 /*
146 * Netgraph node type
147 */
148
149 /* Queue length */
150 static const struct ng_parse_struct_field ng_bt3c_node_qlen_type_fields[] =
151 {
152 { "queue", &ng_parse_int32_type, },
153 { "qlen", &ng_parse_int32_type, },
154 { NULL, }
155 };
156 static const struct ng_parse_type ng_bt3c_node_qlen_type = {
157 &ng_parse_struct_type,
158 &ng_bt3c_node_qlen_type_fields
159 };
160
161 /* Stat info */
162 static const struct ng_parse_struct_field ng_bt3c_node_stat_type_fields[] =
163 {
164 { "pckts_recv", &ng_parse_uint32_type, },
165 { "bytes_recv", &ng_parse_uint32_type, },
166 { "pckts_sent", &ng_parse_uint32_type, },
167 { "bytes_sent", &ng_parse_uint32_type, },
168 { "oerrors", &ng_parse_uint32_type, },
169 { "ierrors", &ng_parse_uint32_type, },
170 { NULL, }
171 };
172 static const struct ng_parse_type ng_bt3c_node_stat_type = {
173 &ng_parse_struct_type,
174 &ng_bt3c_node_stat_type_fields
175 };
176
177 static const struct ng_cmdlist ng_bt3c_cmdlist[] = {
178 {
179 NGM_BT3C_COOKIE,
180 NGM_BT3C_NODE_GET_STATE,
181 "get_state",
182 NULL,
183 &ng_parse_uint16_type
184 },
185 {
186 NGM_BT3C_COOKIE,
187 NGM_BT3C_NODE_SET_DEBUG,
188 "set_debug",
189 &ng_parse_uint16_type,
190 NULL
191 },
192 {
193 NGM_BT3C_COOKIE,
194 NGM_BT3C_NODE_GET_DEBUG,
195 "get_debug",
196 NULL,
197 &ng_parse_uint16_type
198 },
199 {
200 NGM_BT3C_COOKIE,
201 NGM_BT3C_NODE_GET_QLEN,
202 "get_qlen",
203 NULL,
204 &ng_bt3c_node_qlen_type
205 },
206 {
207 NGM_BT3C_COOKIE,
208 NGM_BT3C_NODE_SET_QLEN,
209 "set_qlen",
210 &ng_bt3c_node_qlen_type,
211 NULL
212 },
213 {
214 NGM_BT3C_COOKIE,
215 NGM_BT3C_NODE_GET_STAT,
216 "get_stat",
217 NULL,
218 &ng_bt3c_node_stat_type
219 },
220 {
221 NGM_BT3C_COOKIE,
222 NGM_BT3C_NODE_RESET_STAT,
223 "reset_stat",
224 NULL,
225 NULL
226 },
227 { 0, }
228 };
229
230 static struct ng_type typestruct = {
231 .version = NG_ABI_VERSION,
232 .name = NG_BT3C_NODE_TYPE,
233 .constructor = ng_bt3c_constructor,
234 .rcvmsg = ng_bt3c_rcvmsg,
235 .shutdown = ng_bt3c_shutdown,
236 .newhook = ng_bt3c_newhook,
237 .connect = ng_bt3c_connect,
238 .rcvdata = ng_bt3c_rcvdata,
239 .disconnect = ng_bt3c_disconnect,
240 .cmdlist = ng_bt3c_cmdlist
241 };
242
243 /*
244 * Netgraph node constructor. Do not allow to create node of this type.
245 */
246
247 static int
ng_bt3c_constructor(node_p node)248 ng_bt3c_constructor(node_p node)
249 {
250 return (EINVAL);
251 } /* ng_bt3c_constructor */
252
253 /*
254 * Netgraph node destructor. Destroy node only when device has been detached
255 */
256
257 static int
ng_bt3c_shutdown(node_p node)258 ng_bt3c_shutdown(node_p node)
259 {
260 bt3c_softc_p sc = (bt3c_softc_p) NG_NODE_PRIVATE(node);
261
262 /* Let old node go */
263 NG_NODE_SET_PRIVATE(node, NULL);
264 NG_NODE_UNREF(node);
265
266 /* Create new fresh one if we are not going down */
267 if (sc == NULL)
268 goto out;
269
270 /* Create new Netgraph node */
271 if (ng_make_node_common(&typestruct, &sc->node) != 0) {
272 device_printf(sc->dev, "Could not create Netgraph node\n");
273 sc->node = NULL;
274 goto out;
275 }
276
277 /* Name new Netgraph node */
278 if (ng_name_node(sc->node, device_get_nameunit(sc->dev)) != 0) {
279 device_printf(sc->dev, "Could not name Netgraph node\n");
280 NG_NODE_UNREF(sc->node);
281 sc->node = NULL;
282 goto out;
283 }
284
285 NG_NODE_SET_PRIVATE(sc->node, sc);
286 out:
287 return (0);
288 } /* ng_bt3c_shutdown */
289
290 /*
291 * Create new hook. There can only be one.
292 */
293
294 static int
ng_bt3c_newhook(node_p node,hook_p hook,char const * name)295 ng_bt3c_newhook(node_p node, hook_p hook, char const *name)
296 {
297 bt3c_softc_p sc = (bt3c_softc_p) NG_NODE_PRIVATE(node);
298
299 if (strcmp(name, NG_BT3C_HOOK) != 0)
300 return (EINVAL);
301
302 if (sc->hook != NULL)
303 return (EISCONN);
304
305 sc->hook = hook;
306
307 return (0);
308 } /* ng_bt3c_newhook */
309
310 /*
311 * Connect hook. Say YEP, that's OK with me.
312 */
313
314 static int
ng_bt3c_connect(hook_p hook)315 ng_bt3c_connect(hook_p hook)
316 {
317 bt3c_softc_p sc = (bt3c_softc_p) NG_NODE_PRIVATE(NG_HOOK_NODE(hook));
318
319 if (hook != sc->hook) {
320 sc->hook = NULL;
321 return (EINVAL);
322 }
323
324 /* set the hook into queueing mode (for incoming (from wire) packets) */
325 NG_HOOK_FORCE_QUEUE(NG_HOOK_PEER(hook));
326
327 return (0);
328 } /* ng_bt3c_connect */
329
330 /*
331 * Disconnect hook
332 */
333
334 static int
ng_bt3c_disconnect(hook_p hook)335 ng_bt3c_disconnect(hook_p hook)
336 {
337 bt3c_softc_p sc = (bt3c_softc_p) NG_NODE_PRIVATE(NG_HOOK_NODE(hook));
338
339 /*
340 * We need to check for sc != NULL because we can be called from
341 * bt3c_pccard_detach() via ng_rmnode_self()
342 */
343
344 if (sc != NULL) {
345 if (hook != sc->hook)
346 return (EINVAL);
347
348 IF_DRAIN(&sc->inq);
349 IF_DRAIN(&sc->outq);
350
351 sc->hook = NULL;
352 }
353
354 return (0);
355 } /* ng_bt3c_disconnect */
356
357 /*
358 * Process control message
359 */
360
361 static int
ng_bt3c_rcvmsg(node_p node,item_p item,hook_p lasthook)362 ng_bt3c_rcvmsg(node_p node, item_p item, hook_p lasthook)
363 {
364 bt3c_softc_p sc = (bt3c_softc_p) NG_NODE_PRIVATE(node);
365 struct ng_mesg *msg = NULL, *rsp = NULL;
366 int error = 0;
367
368 if (sc == NULL) {
369 NG_FREE_ITEM(item);
370 return (EHOSTDOWN);
371 }
372
373 NGI_GET_MSG(item, msg);
374
375 switch (msg->header.typecookie) {
376 case NGM_GENERIC_COOKIE:
377 switch (msg->header.cmd) {
378 case NGM_TEXT_STATUS:
379 NG_MKRESPONSE(rsp, msg, NG_TEXTRESPONSE, M_NOWAIT);
380 if (rsp == NULL)
381 error = ENOMEM;
382 else
383 snprintf(rsp->data, NG_TEXTRESPONSE,
384 "Hook: %s\n" \
385 "Flags: %#x\n" \
386 "Debug: %d\n" \
387 "State: %d\n" \
388 "IncmQ: [len:%d,max:%d]\n" \
389 "OutgQ: [len:%d,max:%d]\n",
390 (sc->hook != NULL)? NG_BT3C_HOOK : "",
391 sc->flags,
392 sc->debug,
393 sc->state,
394 _IF_QLEN(&sc->inq), /* XXX */
395 sc->inq.ifq_maxlen, /* XXX */
396 _IF_QLEN(&sc->outq), /* XXX */
397 sc->outq.ifq_maxlen /* XXX */
398 );
399 break;
400
401 default:
402 error = EINVAL;
403 break;
404 }
405 break;
406
407 case NGM_BT3C_COOKIE:
408 switch (msg->header.cmd) {
409 case NGM_BT3C_NODE_GET_STATE:
410 NG_MKRESPONSE(rsp, msg, sizeof(ng_bt3c_node_state_ep),
411 M_NOWAIT);
412 if (rsp == NULL)
413 error = ENOMEM;
414 else
415 *((ng_bt3c_node_state_ep *)(rsp->data)) =
416 sc->state;
417 break;
418
419 case NGM_BT3C_NODE_SET_DEBUG:
420 if (msg->header.arglen != sizeof(ng_bt3c_node_debug_ep))
421 error = EMSGSIZE;
422 else
423 sc->debug =
424 *((ng_bt3c_node_debug_ep *)(msg->data));
425 break;
426
427 case NGM_BT3C_NODE_GET_DEBUG:
428 NG_MKRESPONSE(rsp, msg, sizeof(ng_bt3c_node_debug_ep),
429 M_NOWAIT);
430 if (rsp == NULL)
431 error = ENOMEM;
432 else
433 *((ng_bt3c_node_debug_ep *)(rsp->data)) =
434 sc->debug;
435 break;
436
437 case NGM_BT3C_NODE_GET_QLEN:
438 NG_MKRESPONSE(rsp, msg, sizeof(ng_bt3c_node_qlen_ep),
439 M_NOWAIT);
440 if (rsp == NULL) {
441 error = ENOMEM;
442 break;
443 }
444
445 switch (((ng_bt3c_node_qlen_ep *)(msg->data))->queue) {
446 case NGM_BT3C_NODE_IN_QUEUE:
447 ((ng_bt3c_node_qlen_ep *)(rsp->data))->queue =
448 NGM_BT3C_NODE_IN_QUEUE;
449 ((ng_bt3c_node_qlen_ep *)(rsp->data))->qlen =
450 sc->inq.ifq_maxlen;
451 break;
452
453 case NGM_BT3C_NODE_OUT_QUEUE:
454 ((ng_bt3c_node_qlen_ep *)(rsp->data))->queue =
455 NGM_BT3C_NODE_OUT_QUEUE;
456 ((ng_bt3c_node_qlen_ep *)(rsp->data))->qlen =
457 sc->outq.ifq_maxlen;
458 break;
459
460 default:
461 NG_FREE_MSG(rsp);
462 error = EINVAL;
463 break;
464 }
465 break;
466
467 case NGM_BT3C_NODE_SET_QLEN:
468 if (msg->header.arglen != sizeof(ng_bt3c_node_qlen_ep)){
469 error = EMSGSIZE;
470 break;
471 }
472
473 if (((ng_bt3c_node_qlen_ep *)(msg->data))->qlen <= 0) {
474 error = EINVAL;
475 break;
476 }
477
478 switch (((ng_bt3c_node_qlen_ep *)(msg->data))->queue) {
479 case NGM_BT3C_NODE_IN_QUEUE:
480 sc->inq.ifq_maxlen = ((ng_bt3c_node_qlen_ep *)
481 (msg->data))->qlen; /* XXX */
482 break;
483
484 case NGM_BT3C_NODE_OUT_QUEUE:
485 sc->outq.ifq_maxlen = ((ng_bt3c_node_qlen_ep *)
486 (msg->data))->qlen; /* XXX */
487 break;
488
489 default:
490 error = EINVAL;
491 break;
492 }
493 break;
494
495 case NGM_BT3C_NODE_GET_STAT:
496 NG_MKRESPONSE(rsp, msg, sizeof(ng_bt3c_node_stat_ep),
497 M_NOWAIT);
498 if (rsp == NULL)
499 error = ENOMEM;
500 else
501 bcopy(&sc->stat, rsp->data,
502 sizeof(ng_bt3c_node_stat_ep));
503 break;
504
505 case NGM_BT3C_NODE_RESET_STAT:
506 NG_BT3C_STAT_RESET(sc->stat);
507 break;
508
509 case NGM_BT3C_NODE_DOWNLOAD_FIRMWARE:
510 if (msg->header.arglen <
511 sizeof(ng_bt3c_firmware_block_ep))
512 error = EMSGSIZE;
513 else
514 bt3c_download_firmware(sc, msg->data,
515 msg->header.arglen);
516 break;
517
518 default:
519 error = EINVAL;
520 break;
521 }
522 break;
523
524 default:
525 error = EINVAL;
526 break;
527 }
528
529 NG_RESPOND_MSG(error, node, item, rsp);
530 NG_FREE_MSG(msg);
531
532 return (error);
533 } /* ng_bt3c_rcvmsg */
534
535 /*
536 * Process data
537 */
538
539 static int
ng_bt3c_rcvdata(hook_p hook,item_p item)540 ng_bt3c_rcvdata(hook_p hook, item_p item)
541 {
542 bt3c_softc_p sc = (bt3c_softc_p)NG_NODE_PRIVATE(NG_HOOK_NODE(hook));
543 struct mbuf *m = NULL;
544 int error = 0;
545
546 if (sc == NULL) {
547 error = EHOSTDOWN;
548 goto out;
549 }
550
551 if (hook != sc->hook) {
552 error = EINVAL;
553 goto out;
554 }
555
556 NGI_GET_M(item, m);
557
558 IF_LOCK(&sc->outq);
559 if (_IF_QFULL(&sc->outq)) {
560 NG_BT3C_ERR(sc->dev,
561 "Outgoing queue is full. Dropping mbuf, len=%d\n", m->m_pkthdr.len);
562
563 NG_BT3C_STAT_OERROR(sc->stat);
564
565 NG_FREE_M(m);
566 } else
567 _IF_ENQUEUE(&sc->outq, m);
568 IF_UNLOCK(&sc->outq);
569
570 error = ng_send_fn(sc->node, NULL, bt3c_send, NULL, 0 /* new send */);
571 out:
572 NG_FREE_ITEM(item);
573
574 return (error);
575 } /* ng_bt3c_rcvdata */
576
577 /****************************************************************************
578 ****************************************************************************
579 ** PCMCIA driver specific
580 ****************************************************************************
581 ****************************************************************************/
582
583 /*
584 * PC Card (PCMCIA) probe routine
585 */
586
587 static struct pccard_product const bt3c_pccard_products[] = {
588 PCMCIA_CARD(3COM, 3CRWB609),
589 { NULL, }
590 };
591
592 static int
bt3c_pccard_probe(device_t dev)593 bt3c_pccard_probe(device_t dev)
594 {
595 struct pccard_product const *pp = NULL;
596
597 pp = pccard_product_lookup(dev, bt3c_pccard_products,
598 sizeof(bt3c_pccard_products[0]), NULL);
599 if (pp == NULL)
600 return (ENXIO);
601
602 device_set_desc(dev, pp->pp_name);
603
604 return (0);
605 } /* bt3c_pccard_probe */
606
607 /*
608 * PC Card (PCMCIA) attach routine
609 */
610
611 static int
bt3c_pccard_attach(device_t dev)612 bt3c_pccard_attach(device_t dev)
613 {
614 bt3c_softc_p sc = (bt3c_softc_p) device_get_softc(dev);
615
616 /* Allocate I/O ports */
617 sc->iobase_rid = 0;
618 sc->iobase = bus_alloc_resource_anywhere(dev, SYS_RES_IOPORT,
619 &sc->iobase_rid, 8, RF_ACTIVE);
620 if (sc->iobase == NULL) {
621 device_printf(dev, "Could not allocate I/O ports\n");
622 goto bad;
623 }
624 sc->iot = rman_get_bustag(sc->iobase);
625 sc->ioh = rman_get_bushandle(sc->iobase);
626
627 /* Allocate IRQ */
628 sc->irq_rid = 0;
629 sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
630 RF_ACTIVE);
631 if (sc->irq == NULL) {
632 device_printf(dev, "Could not allocate IRQ\n");
633 goto bad;
634 }
635
636 sc->irq_cookie = NULL;
637 if (bus_setup_intr(dev, sc->irq, INTR_TYPE_TTY, NULL, bt3c_intr, sc,
638 &sc->irq_cookie) != 0) {
639 device_printf(dev, "Could not setup ISR\n");
640 goto bad;
641 }
642
643 /* Attach handler to TTY SWI thread */
644 sc->ith = NULL;
645 if (swi_add(&tty_intr_event, device_get_nameunit(dev),
646 bt3c_swi_intr, sc, SWI_TTY, 0, &sc->ith) < 0) {
647 device_printf(dev, "Could not setup SWI ISR\n");
648 goto bad;
649 }
650
651 /* Create Netgraph node */
652 if (ng_make_node_common(&typestruct, &sc->node) != 0) {
653 device_printf(dev, "Could not create Netgraph node\n");
654 sc->node = NULL;
655 goto bad;
656 }
657
658 /* Name Netgraph node */
659 if (ng_name_node(sc->node, device_get_nameunit(dev)) != 0) {
660 device_printf(dev, "Could not name Netgraph node\n");
661 NG_NODE_UNREF(sc->node);
662 sc->node = NULL;
663 goto bad;
664 }
665
666 sc->dev = dev;
667 sc->debug = NG_BT3C_WARN_LEVEL;
668
669 sc->inq.ifq_maxlen = sc->outq.ifq_maxlen = BT3C_DEFAULTQLEN;
670 mtx_init(&sc->inq.ifq_mtx, "BT3C inq", NULL, MTX_DEF);
671 mtx_init(&sc->outq.ifq_mtx, "BT3C outq", NULL, MTX_DEF);
672
673 sc->state = NG_BT3C_W4_PKT_IND;
674 sc->want = 1;
675
676 NG_NODE_SET_PRIVATE(sc->node, sc);
677
678 return (0);
679 bad:
680 if (sc->ith != NULL) {
681 swi_remove(sc->ith);
682 sc->ith = NULL;
683 }
684
685 if (sc->irq != NULL) {
686 if (sc->irq_cookie != NULL)
687 bus_teardown_intr(dev, sc->irq, sc->irq_cookie);
688
689 bus_release_resource(dev, SYS_RES_IRQ,
690 sc->irq_rid, sc->irq);
691
692 sc->irq = NULL;
693 sc->irq_rid = 0;
694 }
695
696 if (sc->iobase != NULL) {
697 bus_release_resource(dev, SYS_RES_IOPORT,
698 sc->iobase_rid, sc->iobase);
699
700 sc->iobase = NULL;
701 sc->iobase_rid = 0;
702 }
703
704 return (ENXIO);
705 } /* bt3c_pccacd_attach */
706
707 /*
708 * PC Card (PCMCIA) detach routine
709 */
710
711 static int
bt3c_pccard_detach(device_t dev)712 bt3c_pccard_detach(device_t dev)
713 {
714 bt3c_softc_p sc = (bt3c_softc_p) device_get_softc(dev);
715
716 if (sc == NULL)
717 return (0);
718
719 swi_remove(sc->ith);
720 sc->ith = NULL;
721
722 bus_teardown_intr(dev, sc->irq, sc->irq_cookie);
723 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
724 sc->irq_cookie = NULL;
725 sc->irq = NULL;
726 sc->irq_rid = 0;
727
728 bus_release_resource(dev, SYS_RES_IOPORT, sc->iobase_rid, sc->iobase);
729 sc->iobase = NULL;
730 sc->iobase_rid = 0;
731
732 if (sc->node != NULL) {
733 NG_NODE_SET_PRIVATE(sc->node, NULL);
734 ng_rmnode_self(sc->node);
735 sc->node = NULL;
736 }
737
738 NG_FREE_M(sc->m);
739 IF_DRAIN(&sc->inq);
740 IF_DRAIN(&sc->outq);
741
742 mtx_destroy(&sc->inq.ifq_mtx);
743 mtx_destroy(&sc->outq.ifq_mtx);
744
745 return (0);
746 } /* bt3c_pccacd_detach */
747
748 /*
749 * Interrupt service routine's
750 */
751
752 static void
bt3c_intr(void * context)753 bt3c_intr(void *context)
754 {
755 bt3c_softc_p sc = (bt3c_softc_p) context;
756 u_int16_t control, status;
757
758 if (sc == NULL || sc->ith == NULL) {
759 printf("%s: bogus interrupt\n", NG_BT3C_NODE_TYPE);
760 return;
761 }
762
763 bt3c_read_control(sc, control);
764 if ((control & 0x80) == 0)
765 return;
766
767 bt3c_read(sc, 0x7001, status);
768 NG_BT3C_INFO(sc->dev, "control=%#x, status=%#x\n", control, status);
769
770 if ((status & 0xff) == 0x7f || (status & 0xff) == 0xff) {
771 NG_BT3C_WARN(sc->dev, "Strange status=%#x\n", status);
772 return;
773 }
774
775 /* Receive complete */
776 if (status & 0x0001)
777 bt3c_receive(sc);
778
779 /* Record status and schedule SWI */
780 sc->status |= status;
781 swi_sched(sc->ith, 0);
782
783 /* Complete interrupt */
784 bt3c_write(sc, 0x7001, 0x0000);
785 bt3c_write_control(sc, control);
786 } /* bt3c_intr */
787
788 /*
789 * Receive data
790 */
791
792 static void
bt3c_receive(bt3c_softc_p sc)793 bt3c_receive(bt3c_softc_p sc)
794 {
795 u_int16_t i, count, c;
796
797 /* Receive data from the card */
798 bt3c_read(sc, 0x7006, count);
799 NG_BT3C_INFO(sc->dev, "The card has %d characters\n", count);
800
801 bt3c_set_address(sc, 0x7480);
802
803 for (i = 0; i < count; i++) {
804 /* Allocate new mbuf if needed */
805 if (sc->m == NULL) {
806 sc->state = NG_BT3C_W4_PKT_IND;
807 sc->want = 1;
808
809 MGETHDR(sc->m, M_NOWAIT, MT_DATA);
810 if (sc->m == NULL) {
811 NG_BT3C_ERR(sc->dev, "Could not get mbuf\n");
812 NG_BT3C_STAT_IERROR(sc->stat);
813
814 break; /* XXX lost of sync */
815 }
816
817 if (!(MCLGET(sc->m, M_NOWAIT))) {
818 NG_FREE_M(sc->m);
819
820 NG_BT3C_ERR(sc->dev, "Could not get cluster\n");
821 NG_BT3C_STAT_IERROR(sc->stat);
822
823 break; /* XXX lost of sync */
824 }
825
826 sc->m->m_len = sc->m->m_pkthdr.len = 0;
827 }
828
829 /* Read and append character to mbuf */
830 bt3c_read_data(sc, c);
831 if (sc->m->m_pkthdr.len >= MCLBYTES) {
832 NG_BT3C_ERR(sc->dev, "Oversized frame\n");
833
834 NG_FREE_M(sc->m);
835 sc->state = NG_BT3C_W4_PKT_IND;
836 sc->want = 1;
837
838 break; /* XXX lost of sync */
839 }
840
841 mtod(sc->m, u_int8_t *)[sc->m->m_len ++] = (u_int8_t) c;
842 sc->m->m_pkthdr.len ++;
843
844 NG_BT3C_INFO(sc->dev,
845 "Got char %#x, want=%d, got=%d\n", c, sc->want, sc->m->m_pkthdr.len);
846
847 if (sc->m->m_pkthdr.len < sc->want)
848 continue; /* wait for more */
849
850 switch (sc->state) {
851 /* Got packet indicator */
852 case NG_BT3C_W4_PKT_IND:
853 NG_BT3C_INFO(sc->dev,
854 "Got packet indicator %#x\n", *mtod(sc->m, u_int8_t *));
855
856 sc->state = NG_BT3C_W4_PKT_HDR;
857
858 /*
859 * Since packet indicator included in the packet
860 * header just set sc->want to sizeof(packet header).
861 */
862
863 switch (*mtod(sc->m, u_int8_t *)) {
864 case NG_HCI_ACL_DATA_PKT:
865 sc->want = sizeof(ng_hci_acldata_pkt_t);
866 break;
867
868 case NG_HCI_SCO_DATA_PKT:
869 sc->want = sizeof(ng_hci_scodata_pkt_t);
870 break;
871
872 case NG_HCI_EVENT_PKT:
873 sc->want = sizeof(ng_hci_event_pkt_t);
874 break;
875
876 default:
877 NG_BT3C_ERR(sc->dev,
878 "Ignoring unknown packet type=%#x\n", *mtod(sc->m, u_int8_t *));
879
880 NG_BT3C_STAT_IERROR(sc->stat);
881
882 NG_FREE_M(sc->m);
883 sc->state = NG_BT3C_W4_PKT_IND;
884 sc->want = 1;
885 break;
886 }
887 break;
888
889 /* Got packet header */
890 case NG_BT3C_W4_PKT_HDR:
891 sc->state = NG_BT3C_W4_PKT_DATA;
892
893 switch (*mtod(sc->m, u_int8_t *)) {
894 case NG_HCI_ACL_DATA_PKT:
895 c = le16toh(mtod(sc->m,
896 ng_hci_acldata_pkt_t *)->length);
897 break;
898
899 case NG_HCI_SCO_DATA_PKT:
900 c = mtod(sc->m, ng_hci_scodata_pkt_t*)->length;
901 break;
902
903 case NG_HCI_EVENT_PKT:
904 c = mtod(sc->m, ng_hci_event_pkt_t *)->length;
905 break;
906
907 default:
908 KASSERT(0,
909 ("Invalid packet type=%#x\n", *mtod(sc->m, u_int8_t *)));
910 break;
911 }
912
913 NG_BT3C_INFO(sc->dev,
914 "Got packet header, packet type=%#x, got so far %d, payload size=%d\n",
915 *mtod(sc->m, u_int8_t *), sc->m->m_pkthdr.len,
916 c);
917
918 if (c > 0) {
919 sc->want += c;
920 break;
921 }
922
923 /* else FALLTHROUGH and deliver frame */
924 /* XXX is this true? should we deliver empty frame? */
925
926 /* Got packet data */
927 case NG_BT3C_W4_PKT_DATA:
928 NG_BT3C_INFO(sc->dev,
929 "Got full packet, packet type=%#x, packet size=%d\n",
930 *mtod(sc->m, u_int8_t *), sc->m->m_pkthdr.len);
931
932 NG_BT3C_STAT_BYTES_RECV(sc->stat, sc->m->m_pkthdr.len);
933 NG_BT3C_STAT_PCKTS_RECV(sc->stat);
934
935 IF_LOCK(&sc->inq);
936 if (_IF_QFULL(&sc->inq)) {
937 NG_BT3C_ERR(sc->dev,
938 "Incoming queue is full. Dropping mbuf, len=%d\n", sc->m->m_pkthdr.len);
939
940 NG_BT3C_STAT_IERROR(sc->stat);
941
942 NG_FREE_M(sc->m);
943 } else {
944 _IF_ENQUEUE(&sc->inq, sc->m);
945 sc->m = NULL;
946 }
947 IF_UNLOCK(&sc->inq);
948
949 sc->state = NG_BT3C_W4_PKT_IND;
950 sc->want = 1;
951 break;
952
953 default:
954 KASSERT(0,
955 ("Invalid node state=%d", sc->state));
956 break;
957 }
958 }
959
960 bt3c_write(sc, 0x7006, 0x0000);
961 } /* bt3c_receive */
962
963 /*
964 * SWI interrupt handler
965 * Netgraph part is handled via ng_send_fn() to avoid race with hook
966 * connection/disconnection
967 */
968
969 static void
bt3c_swi_intr(void * context)970 bt3c_swi_intr(void *context)
971 {
972 bt3c_softc_p sc = (bt3c_softc_p) context;
973 u_int16_t data;
974
975 /* Receive complete */
976 if (sc->status & 0x0001) {
977 sc->status &= ~0x0001; /* XXX is it safe? */
978
979 if (ng_send_fn(sc->node, NULL, &bt3c_forward, NULL, 0) != 0)
980 NG_BT3C_ALERT(sc->dev, "Could not forward frames!\n");
981 }
982
983 /* Send complete */
984 if (sc->status & 0x0002) {
985 sc->status &= ~0x0002; /* XXX is it safe */
986
987 if (ng_send_fn(sc->node, NULL, &bt3c_send, NULL, 1) != 0)
988 NG_BT3C_ALERT(sc->dev, "Could not send frames!\n");
989 }
990
991 /* Antenna position */
992 if (sc->status & 0x0020) {
993 sc->status &= ~0x0020; /* XXX is it safe */
994
995 bt3c_read(sc, 0x7002, data);
996 data &= 0x10;
997
998 if (data)
999 sc->flags |= BT3C_ANTENNA_OUT;
1000 else
1001 sc->flags &= ~BT3C_ANTENNA_OUT;
1002
1003 NG_BT3C_INFO(sc->dev, "Antenna %s\n", data? "OUT" : "IN");
1004 }
1005 } /* bt3c_swi_intr */
1006
1007 /*
1008 * Send all incoming frames to the upper layer
1009 */
1010
1011 static void
bt3c_forward(node_p node,hook_p hook,void * arg1,int arg2)1012 bt3c_forward(node_p node, hook_p hook, void *arg1, int arg2)
1013 {
1014 bt3c_softc_p sc = (bt3c_softc_p) NG_NODE_PRIVATE(node);
1015 struct mbuf *m = NULL;
1016 int error;
1017
1018 if (sc == NULL)
1019 return;
1020
1021 if (sc->hook != NULL && NG_HOOK_IS_VALID(sc->hook)) {
1022 for (;;) {
1023 IF_DEQUEUE(&sc->inq, m);
1024 if (m == NULL)
1025 break;
1026
1027 NG_SEND_DATA_ONLY(error, sc->hook, m);
1028 if (error != 0)
1029 NG_BT3C_STAT_IERROR(sc->stat);
1030 }
1031 } else {
1032 IF_LOCK(&sc->inq);
1033 for (;;) {
1034 _IF_DEQUEUE(&sc->inq, m);
1035 if (m == NULL)
1036 break;
1037
1038 NG_BT3C_STAT_IERROR(sc->stat);
1039 NG_FREE_M(m);
1040 }
1041 IF_UNLOCK(&sc->inq);
1042 }
1043 } /* bt3c_forward */
1044
1045 /*
1046 * Send more data to the device. Must be called when node is locked
1047 */
1048
1049 static void
bt3c_send(node_p node,hook_p hook,void * arg,int completed)1050 bt3c_send(node_p node, hook_p hook, void *arg, int completed)
1051 {
1052 bt3c_softc_p sc = (bt3c_softc_p) NG_NODE_PRIVATE(node);
1053 struct mbuf *m = NULL;
1054 int i, wrote, len;
1055
1056 if (sc == NULL)
1057 return;
1058
1059 if (completed)
1060 sc->flags &= ~BT3C_XMIT;
1061
1062 if (sc->flags & BT3C_XMIT)
1063 return;
1064
1065 bt3c_set_address(sc, 0x7080);
1066
1067 for (wrote = 0; wrote < BT3C_FIFO_SIZE; ) {
1068 IF_DEQUEUE(&sc->outq, m);
1069 if (m == NULL)
1070 break;
1071
1072 while (m != NULL) {
1073 len = min((BT3C_FIFO_SIZE - wrote), m->m_len);
1074
1075 for (i = 0; i < len; i++)
1076 bt3c_write_data(sc, m->m_data[i]);
1077
1078 wrote += len;
1079 m->m_data += len;
1080 m->m_len -= len;
1081
1082 if (m->m_len > 0)
1083 break;
1084
1085 m = m_free(m);
1086 }
1087
1088 if (m != NULL) {
1089 IF_PREPEND(&sc->outq, m);
1090 break;
1091 }
1092
1093 NG_BT3C_STAT_PCKTS_SENT(sc->stat);
1094 }
1095
1096 if (wrote > 0) {
1097 NG_BT3C_INFO(sc->dev, "Wrote %d bytes\n", wrote);
1098 NG_BT3C_STAT_BYTES_SENT(sc->stat, wrote);
1099
1100 bt3c_write(sc, 0x7005, wrote);
1101 sc->flags |= BT3C_XMIT;
1102 }
1103 } /* bt3c_send */
1104
1105 /*
1106 * Download chip firmware
1107 */
1108
1109 static void
bt3c_download_firmware(bt3c_softc_p sc,char const * firmware,int firmware_size)1110 bt3c_download_firmware(bt3c_softc_p sc, char const *firmware, int firmware_size)
1111 {
1112 ng_bt3c_firmware_block_ep const *block = NULL;
1113 u_int16_t const *data = NULL;
1114 int i, size;
1115 u_int8_t c;
1116
1117 /* Reset */
1118 device_printf(sc->dev, "Reseting the card...\n");
1119 bt3c_write(sc, 0x8040, 0x0404);
1120 bt3c_write(sc, 0x8040, 0x0400);
1121 DELAY(1);
1122
1123 bt3c_write(sc, 0x8040, 0x0404);
1124 DELAY(17);
1125
1126 /* Download firmware */
1127 device_printf(sc->dev, "Starting firmware download process...\n");
1128
1129 for (size = 0; size < firmware_size; ) {
1130 block = (ng_bt3c_firmware_block_ep const *)(firmware + size);
1131 data = (u_int16_t const *)(block + 1);
1132
1133 if (bootverbose)
1134 device_printf(sc->dev, "Download firmware block, " \
1135 "address=%#08x, size=%d words, aligment=%d\n",
1136 block->block_address, block->block_size,
1137 block->block_alignment);
1138
1139 bt3c_set_address(sc, block->block_address);
1140 for (i = 0; i < block->block_size; i++)
1141 bt3c_write_data(sc, data[i]);
1142
1143 size += (sizeof(*block) + (block->block_size * 2) +
1144 block->block_alignment);
1145 }
1146
1147 DELAY(17);
1148 device_printf(sc->dev, "Firmware download process complete\n");
1149
1150 /* Boot */
1151 device_printf(sc->dev, "Starting the card...\n");
1152 bt3c_set_address(sc, 0x3000);
1153 bt3c_read_control(sc, c);
1154 bt3c_write_control(sc, (c | 0x40));
1155 DELAY(17);
1156
1157 /* Clear registers */
1158 device_printf(sc->dev, "Clearing card registers...\n");
1159 bt3c_write(sc, 0x7006, 0x0000);
1160 bt3c_write(sc, 0x7005, 0x0000);
1161 bt3c_write(sc, 0x7001, 0x0000);
1162 DELAY(1000);
1163 } /* bt3c_download_firmware */
1164
1165 /****************************************************************************
1166 ****************************************************************************
1167 ** Driver module
1168 ****************************************************************************
1169 ****************************************************************************/
1170
1171 /*
1172 * PC Card (PCMCIA) driver
1173 */
1174
1175 static device_method_t bt3c_pccard_methods[] = {
1176 /* Device interface */
1177 DEVMETHOD(device_probe, bt3c_pccard_probe),
1178 DEVMETHOD(device_attach, bt3c_pccard_attach),
1179 DEVMETHOD(device_detach, bt3c_pccard_detach),
1180
1181 { 0, 0 }
1182 };
1183
1184 static driver_t bt3c_pccard_driver = {
1185 NG_BT3C_NODE_TYPE,
1186 bt3c_pccard_methods,
1187 sizeof(bt3c_softc_t)
1188 };
1189
1190 static devclass_t bt3c_devclass;
1191
1192
1193 /*
1194 * Load/Unload the driver module
1195 */
1196
1197 static int
bt3c_modevent(module_t mod,int event,void * data)1198 bt3c_modevent(module_t mod, int event, void *data)
1199 {
1200 int error;
1201
1202 switch (event) {
1203 case MOD_LOAD:
1204 error = ng_newtype(&typestruct);
1205 if (error != 0)
1206 printf("%s: Could not register Netgraph node type, " \
1207 "error=%d\n", NG_BT3C_NODE_TYPE, error);
1208 break;
1209
1210 case MOD_UNLOAD:
1211 error = ng_rmtype(&typestruct);
1212 break;
1213
1214 default:
1215 error = EOPNOTSUPP;
1216 break;
1217 }
1218
1219 return (error);
1220 } /* bt3c_modevent */
1221
1222 DRIVER_MODULE(bt3c, pccard, bt3c_pccard_driver, bt3c_devclass, bt3c_modevent,0);
1223 MODULE_VERSION(ng_bt3c, NG_BLUETOOTH_VERSION);
1224 MODULE_DEPEND(ng_bt3c, netgraph, NG_ABI_VERSION, NG_ABI_VERSION,NG_ABI_VERSION);
1225 PCCARD_PNP_INFO(bt3c_pccard_products);
1226